Very good design especially on the head, but i would darken it a bit more because the eye sockets make it look like the drone really has eyes giving him a weird facial expression.
I dont know if you know this or not but you dont really have to be constrained by the original skin resolution, from my experience you can import a skin up to 1024x1024 into dedit, this allows you to get much more detail and more importantly avoid that cartoonish look that is characteristic of avp textures.
This are some of my experiments:
This kind of intricate detail would never be possible with the original 256x256 textures. Using a a texture that is effectively 16x larger will definetelly make the game heavier on the pc but the effect is dramatic for the best.
From my experiments i would say that 1024x1024 is the max res that dedit allows you to import, but if anyone could find a way of going over that limit that would be great.